Estimating the Cumulative Ecological Effect of Local Scale Landscape Changes in South Florida

Ecosystem restoration in south Florida is a state and national priority centered on the Everglades wetlands. However, urban development pressures affect the restoration potential and remaining habitat functions of the natural undeveloped areas. Land use (LU) planning often focuses at the local level, but a better understanding of the cumulative effects of small projects at the landscape level is needed to support ecosystem restoration and preservation. The South Florida Ecosystem Portfolio Model (SFL EPM) is a regional LU planning tool developed to help stakeholders visualize LU scenario evaluation and improve communication about regional effects of LU decisions. One component of the SFL EPM is ecological value (EV), which is evaluated through modeled ecological criteria related to ecosystem services using metrics for (1) biodiversity potential, (2) threatened and endangered species, (3) rare and unique habitats, (4) landscape pattern and fragmentation, (5) water quality buffer potential, and (6) ecological restoration potential. In this article, we demonstrate the calculation of EV using two case studies: (1) assessing altered EV in the Biscayne Gateway area by comparing 2004 LU to potential LU in 2025 and 2050, and (2) the cumulative impact of adding limestone mines south of Miami. Our analyses spatially convey changing regional EV resulting from conversion of local natural and agricultural areas to urban, industrial, or extractive use. Different simulated local LU scenarios may result in different alterations in calculated regional EV. These case studies demonstrate methods that may facilitate evaluation of potential future LU patterns and incorporate EV into decision making.

[1]  W. Solecki,et al.  Human–environment interactions in South Florida's Everglades region: Systems of ecological degradation and restoration , 1999, Urban Ecosystems.

[2]  R. Pielke,et al.  Evidence that local land use practices influence regional climate, vegetation, and stream flow patterns in adjacent natural areas , 1998 .

[3]  Piet Rietveld,et al.  Modelling biodiversity and land use : urban growth, agriculture and nature in a wetland area , 2004 .

[4]  J. Allan,et al.  The influence of catchment land use on stream integrity across multiple spatial scales , 1997 .

[5]  L. Fahrig,et al.  Connectivity is a vital element of landscape structure , 1993 .

[6]  J. Zedler.  Wetlands at your service: reducing impacts of agriculture at the watershed scale , 2003 .

[7]  Bruce T. Milne,et al.  Detecting Critical Scales in Fragmented Landscapes , 1997 .

[8]  N. Thompson Hobbs,et al.  Estimating the cumulative effects of development on wildlife habitat , 1997 .

[9]  L. Pearlstine,et al.  Assessing state-wide biodiversity in the Florida Gap analysis project. , 2002, Journal of environmental management.

[10]  M. McKinney,et al.  Urbanization, Biodiversity, and Conservation , 2002 .

[11]  David M. Theobald,et al.  Incorporating biological information in local land-use decision making: designing a system for conservation planning , 2004, Landscape Ecology.

[12]  G. Daily,et al.  Valuing ecosystem services: philosophical bases and empirical methods. , 1997 .

[13]  S. Carpenter,et al.  NONPOINT POLLUTION OF SURFACE WATERS WITH PHOSPHORUS AND NITROGEN , 1998 .

[14]  Riki Therivel,et al.  Methods of Environmental Impact Assessment , 2002 .

[15]  M. Walbridge.  Functions and Values of Forested Wetlands in the Southern United States , 1993, Journal of Forestry.

[16]  Sheila Peck.  Planning for Biodiversity: Issues And Examples , 1998 .

[17]  Susanna T. Y. Tong,et al.  Modeling the relationship between land use and surface water quality. , 2002, Journal of environmental management.

[18]  S. G. Hildebrand,et al.  Environmental Analysis: The NEPA Experience , 1993 .

[19]  Craig R. Nitschke,et al.  The cumulative effects of resource development on biodiversity and ecological integrity in the Peace-Moberly region of Northeast British Columbia, Canada , 2008, Biodiversity and Conservation.

[20]  K. Reddy,et al.  Land‐Use Effects on Soil Nutrient Cycling and Microbial Community Dynamics in the Everglades Agricultural Area, Florida , 2009 .

[21]  K. McGarigal,et al.  FRAGSTATS: spatial pattern analysis program for quantifying landscape structure. , 1995 .

[22]  Thomas Fischer.  Ecosystem Planning in Florida - Solving Regional Problems through Local Decision-Making , 2012 .

[23]  L. Tischendorf.  Can landscape indices predict ecological processes consistently? , 2001, Landscape Ecology.

[24]  Carol A. Johnston,et al.  Sediment and nutrient retention by freshwater wetlands: effects on surface water quality , 1991 .

[25]  R. Bernknopf,et al.  Using Econometrics and Geographic Information Systems for Property Valuation : A Spatial Hedonic Pricing Model , 2013 .

[26]  J. F. Hosner.  Meeting Demands for Breadth and Depth: A Two-Tiered Approach , 1993, Journal of Forestry.

[27]  David Salvesen,et al.  Collaborative planning for wetlands and wildlife : issues and examples , 1995 .

[28]  R. Horner,et al.  Impacts of urbanization on palustrine (depressional freshwater) wetlands—research and management in the Puget Sound region , 1998, Urban Ecosystems.

[29]  Richard Bernknopf,et al.  The South Florida Ecosystem Portfolio Model - A Map-Based Multicriteria Ecological, Economic, and Community Land-Use Planning Tool , 2009 .

[30]  G. Daily.  Nature's services: societal dependence on natural ecosystems. , 1998 .

[31]  C. Hopkinson,et al.  Modeling the relationship between development and storm water and nutrient runoff , 1980 .

[32]  R. Howarth,et al.  Discourse-based valuation of ecosystem services: establishing fair outcomes through group deliberation , 2002 .

[33]  Martinus J. Bergman,et al.  Estimating Nonpoint Source Pollution Loads With a GIS Screening Model , 1995 .